*{
    margin: 0;
    padding: 0;
}

/*nav导航栏*/
.navbar-default{
    background: white !important;
    border: none;
    box-shadow: 0 0 10px 0 #d0d0d0;
    font-size: 16px !important;

}
.navbar-default.affix{
    width: 100%;
    top: 0;
    z-index: 99;
}

.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover, .navbar-default .navbar-nav > .active > a:focus{
    background: transparent !important;
    border-bottom: solid 2px yellowgreen;
}

.navbar-default li:hover a{
    background: transparent !important;
    border-bottom: solid 2px yellowgreen;
}



.u li{
    width: 91px;
}
.dropdown-menu{
    min-width: 93px;
}
.dropdown-menu > li{
    text-align: center;
}
.dropdown-menu > li > a{
    padding: 3px 0 !important;
}
    /*轮播图*/
#one img{
    width: 100%;
    max-width: 100%;
}

.big ul{
    width: 100%;
   background: rgba(0,0,0,0.5);
    margin: 0 !important;
    position: absolute;
    bottom: 0px;
}
.big ul li{
    width: 100%;
    padding: 10px;
    font-size: 16px;
    color: whitesmoke;
}
/*two*/
@media (max-width: 992px) {
    .introduce{
        margin-top: 15px;
    }
}


/*three*/
.pics{
    width: 100%;
    overflow: hidden;
}
.pics ul li{
    width: 32.3%;
    float: left;
    display: block;
    overflow: hidden;
    position: relative;
}

.pics ul i{
    display: block;
    height: 150px;
}
.pics ul li span{

    width: 100%;
    position: absolute;
    left: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    color: white;
    font-size: 16px;
    padding: 15px;
    margin-right: 5px;
    opacity: 0;
    transition: all 0.2s linear;
}
 .pics ul li:hover span{
     opacity: 1;
 }
 @media (max-width: 1200px) {
     .li1{
margin-left: 4px !important;
     }
 }

.select-img{
    position: relative;
    top: -40px;
}

@media (max-width: 1200px) {
    .select-img{
        position: relative !important;
        top: 0 !important;
    }
}
@media (max-width: 992px) {
   .select-img{
       position: relative !important;
       top: 20px !important;
   }
}

/*
four*/
@media (max-width: 992px) {
    #four{
        margin-top: 35px;
    }
    .four-right{
      position: relative;
        top: 15px;
    }
}
#four .nav-tabs li a,#four .nav-tabs li.active a{
    background:none !important;
border: none !important;
}
#four .nav-tabs {
    border-bottom: none !important;
}

.tab-header ul{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    padding: 10px;
}
.tab-header ul li a{
    font-weight: 600;
    font-size: 16px;
    color:#c54646;
}
#four a{
    text-decoration: none;
}

.tab-middle a ul li {
    list-style-image: url("images/eg_arrow.png");
}
ul li{
    list-style: none;
}


